My mom had a goldfish when I was very young named Circles. He was in, you guessed it, a round bowl that must have been about 3 gallons. He would swim around that tank constantly. No heater or filter. Mom used to change his water out once in awhile. We had him for probably 5 years then one day he jumped out of the tank and that was it for poor Circles. A few years later when I was about nine I got a 10 gallon tank with an internal box filter. Have no real idea what I had in there except a kissing gourami and a few neon tetras. Not heated and probably did water changes twice a year. Left the hobby for about 10 years then started back up when I was 21. That was over 30 years ago.
